I've heard this can be done, but I'm very noob to PSP modding, and I was hopping someone can help me. I know I have the old motherboard, so I won't brick my system... I found this link here, http://www.pspmod.com/forums/firmware/17508-3-50-downgrade-tutorial.html They seem to know what they're talking about, but I don't want to take any chances I don't have to... If someone knows of a nice straight forward way to approach this, I'd really be pleased. I'm basically looking for an idiots guide of what to do and what I need. I don't know anything about how these firmwares work or for the life of me what the heck HEN is... Other than a female chicken. So if someone can help me perform this downgrade, that would be great.